Question

我正在尝试从此https://pythonhosted.org/SuRF/examples/dbpedia.html

运行SURF Dbpedia的示例代码

import surf
store = surf.Store(reader = 'sparql_protocol',
                   endpoint = 'http://dbpedia.org/sparql',
                   default_graph = 'http://dbpedia.org')

print 'Create the session'
session = surf.Session(store, {})
session.enable_logging = False
PhilCollinsAlbums = session.get_class(surf.ns.YAGO['PhilCollinsAlbums'])
all_albums = PhilCollinsAlbums.all()
print 'Phil Collins has %d albums on dbpedia' % len(all_albums)

提供错误：

Create the session
Traceback (most recent call last):
  File "/home/nitin/surf/sample.py", line 16, in <module>
    print 'Phil Collins has %d albums on dbpedia' % len(all_albums)
  File "/usr/local/lib/python2.7/dist-packages/SuRF-1.1.4_r352-py2.7.egg/surf/resource/result_proxy.py", line 231, in __len__
    _, get_by_response = self.__execute_get_by()
  File "/usr/local/lib/python2.7/dist-packages/SuRF-1.1.4_r352-py2.7.egg/surf/resource/result_proxy.py", line 211, in __execute_get_by
    self.__get_by_response = store.get_by(self.__get_by_args)
  File "/usr/local/lib/python2.7/dist-packages/SuRF-1.1.4_r352-py2.7.egg/surf/store.py", line 182, in get_by
    return self.reader.get_by(params)
  File "/usr/local/lib/python2.7/dist-packages/SuRF-1.1.4_r352-py2.7.egg/surf/plugin/reader.py", line 149, in get_by
    return self._get_by(params)
  File "/usr/local/lib/python2.7/dist-packages/SuRF-1.1.4_r352-py2.7.egg/surf/plugin/query_reader.py", line 213, in _get_by
    for match in table:
TypeError: iteration over non-sequence

任何人都可以帮我解决这个问题。

使用SURF dbpedia库从dbpedia获取专辑列表

0 个答案: